US1532846A

US1532846A - Electrical condenser

Info

Publication number: US1532846A
Application number: US370061A
Authority: US
Inventors: Chester H Thordarson
Original assignee: Individual
Current assignee: Individual
Priority date: 1920-03-31
Filing date: 1920-03-31
Publication date: 1925-04-07
Anticipated expiration: 1942-04-07

Description

April 7, 1925..

C. H. THORDARSON ELECTRICAL .CONDENSER Filed MaICh 3l, 1920 I l i l 1 1 l I i i i l Patented Apr. 7, 1925.

maar@ PATENT Vorifice.

CHESTER I-I. TI-IORCDA-RSON, OFVCHICAGO, ILLINOIS.

ELECTRICAL CONDENSER.

Application led March 31, 1920. Serial No. 370,061.

To aZZ- whom t may concern.'

Be it-known that I, CHESTER H. THORDAR- soN, a citizen o f the United States, and a resident of Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Electrical Condensers; and I do hereby declare thatthe following is a full, clear, and eX- act description thereof, reference being had 0 to the accompanying drawings, and to the characters of reference marked thereon, which form a part of this specification.

This invention relates to improvements in electrical condensers designed more particularly for high tension currents of that type that is constructed and, adapted to be cooled by immersing the same in a body of cooling oil or like cooling medium.

Among the objects of the invention is to provide a novel form of compound conducting and spacer elements between the dielectric elements so constructed and arranged that thereby the conducting and dielectric elements may be kept cool by the flow of'a cooling medium over and about the surfaces thereof, the conducting elements being such as to provide for a large and free distribution of the cooling medium over or in contact with the surfaces thereof.

Another object of the invention is to provide a construction of the spacing and conducting' elen'ients by which theV condenser structure as a whole is resiliently braced against deformation under mechanical stresses, and `whereby the dielectric elements' are protected against rupture by electrostatic stresses. Y

Other objects of theinvention are to otherwise improve and simplify the condenser structure, and the invention consists of the combination and arrangement'of the parts shown in the drawings Aand described in thev specification, and is pointe-d out in the appended claims.V

In the drawings: A Figure l is a perspective view of an elecirical condenser embodying my invention. Figure 2 lis a vertical section thereof showing the outline ofthe casing to lhold the oil in which the condenser structure is adapted to be submerged.

Figure 3 is a top plan view-of the condenser, with Vparts broken away.

Figure 4 is an enlarged detail showing one of the conducting elements of the condenser.

Figure 5 is a detail view showing a modification of the conducting element. As shown in the drawings, 10 `and 15 designate respectively the spacing and conducting elements of the condenser, and 11-11 Vdesignate the dielectric elements interposed therebetween. The condenser as a whole is contained in a casing 12,V shown in dotted outline in Figures 2 and 3, the casing being of such forni and dimensions as to closely receive the condenser and to contain a sufficient body of cooling medium for cooling the condenser.

The dielectric elements 11 consist, yas herein shown of plain or. flat. sheets and may be made of any suitable insulating material, such as mica, fibre, or the like, and are of sufiicientlygreater vertical length and transverse width than the spacing and conducting elements as to project at both ends and at the/sides beyond said latter elements to avoid leakage around the edges of the dielectric elements.

The conducting elements are characterized in part by the flat sheets .15 that lie against the flat faces of the dielectrics and in part by the sheets 10 of longitudinally corrugated or wavy cross section so arranged as to form at the sides thereof throughout the length of the sheets up and down passages. for the ii'owof a cooling medium, as oil.

i The outer curves of the intermediate corrugated elements contact with the flat inner faces of the exterior elements 15. The said flat plates or elements maybe curved at vtheir side edges toward each other as shown at '16 (Figure 4t) so that the compound spacing and conducting elements comprise an elongated tube open at top and bottom, of which the sheets or elements 15-15 are the side Walls and the intermediate elements 10 between them, in the wave-likek or corrugated structurev are bracing elements. In this arrangement there are formed between the intermediate and outer elements unobstructed vertical channels 17-17 through which the cooling medium can iiow for contact with the faces' of all of the elements.

ln the construction shown in Figure 5, a

single sinuons wave-like element 18 is arranged between adjacent pairs ot dielectric eleinents to lorin the oil passages 17 between the single conductor eleinent and the. adjacent dielectric elements. y

The said condenser structure is bound together between flat sheet insulating elenients 19-19 that inay be inade oi wood, fibre', or the like; and tie-bolts 20-20 extend transversely through the said eleinents 19 above and below Vthe conducting eleinents ot the condenser and tie said parts together. The conlining 'l'ran'ie thus constructed may include also upper and lower

transverse angle bars

21, 22 which lie along the outer faces oit the insulating elements 19 near theii` upper and lower ends, and side channel bars 23 which lie outside oli and over theI vertical webs ot the angle bars, terminating in abutting relation to the lateral ilange ot the angle bars. rl`he tie bolts 2O extend through said angle and channel bars, with their hards and nuts bearing on the webs ot the channel bars so as to thereby clainp the elements of the. assembled structure in lixed relation to each other against mechanical stresses. The said tie bolts are surrounded by or extend through insulating slee-ves 20 which are partially contained in parti-cylindric or other shaped notches in the upper and lower edges ot the dielectric eleinents so as to constitute ineans for holding said dielectric elenients both t'roin vert-ical and lateral shitting. The flanges ot the angle and channel inenibers 22, 2?) are o't suoli dimensions as to closely tit in the casing 12 t'o hold the condenser structure lirinly therein and to avoid vibration of the condenser structure.

.2S-25 Vdesignate insulating mounting plates tor terniii'ial rods 26 and 2T oli the concha-.ting elen'ients ot opposite polarity. The said mounting plates are in vertical alignment with the contining insulating pla or inei'nbers 19 and are attached to the Ytraine structure by screws 28 that pass through the angle bars above relerred to. The said terininal rods extend between, and through openings in, the mounting plates, and are threaded at their ends` outside ot their mounting plates tol constitute at their ends binding posts tor the circuit wires. Each oit said tern'iinal rods 26--27v is connected to alternate conducting elements by ineans ot conducting hooks 2li-30,'which hoohs lit over said rods and engage openings therein in the inanner shown in Figure 17 and the Shanks ot said hooks are flattened, and as indicated in dotted lines in Figure 4;, so asto enter the conduits 17 lfor oil :tlow and are thereby in contact with said conducting and spacing eleinents. Thus it will he seen that the terminal rods 26, 2T are connected through said

hooks

29, 30 to alternate conducting eleiuents ol the condenser structure. The conducting hooks, connected as they are to said conducting eleinents and the terniinal rods, enable said hooks to be readily renioved and replaced so as to thereby vary the active capacity oi? the condenser.

lVith the construction described it will be observed that the conducting and spacing eleinents are so related to the dielectric eleinents that there is 'lforined aniple passage way for the cooling niediun'i iiior contact with the 'ull faces ot the conducting and spacing eleinents and dielectric elenients, whereby the condenser structure inay be kept suitably cooled'. `.Vhile capable o't large and varied capacities, it will be i'urtherniore noted that the construction is such that the dielectric and conducting eleinents are inutually pressed together so as to produce a very rigid structure' and avoid buckling thereof under heavy electrical stresses. It will also be observed that the construct-ion and arrangement ot the conipound conducting and spacing elements shown is such as to greatly increase. the capacity o't the condenser to adapt it to high tension currents.

l cla'ini as' my invention:

1. An electrical condenser comprising interleaved dielectric and conducting eleinents, the conducting elements being 'formed of tube-like structures havingl side inenibers `for contact with the dielectric elements and. with intermediate curved ineinbers.

2. Ani electrical condenser comprising interleaved dielectric and coinpound conduct-ing elements, the conducting eleinents embracing wave-like transverse torinations to provide at the sides thereot' passages tor a cooling liquid, and tlat inenibers between said formations and the dielectric elements.

An electrical condenser comprising interleaved dielectric and conducting and spacing elelnents including sheets that lie against said dielectric elements and vertically corrugated elements between and lying with their couverY 'faces against said sheets. the side margins oli said sheets being curved towards cach other.

11. An electrical condenser comprising interleaved dielectric and conducting eleinents, thel conducting` elen'ients being` ot wave-like transverse Alorination to provide at the sides thereof passages for a cooling liquid, said dielectric elenients extending transversely and longitudinally beyond the margins ot the conducting eleinents, nieans 'for tying` the structure together, combined with Ineans to interlock with the dielectric eleinents to hold theln iiroln inovenient in their planes.

5. An electrica-l condenser conuarising interleaved dielectric and conducting elcinents, the conducting elements being vertically corrugated to provide at the sides thereoi1 passages for a cooling liquid, terminal rods supported on said structure and hooks engaging said rods and adapted to extend at their ends into said cooling medium passages for contact with said conducting elements.

6. An electrical condenser comprising interleaved dielectric and conductingy elements, the conducting elements being of wave-like transverse formation to provide at the sides thereof passages for a cooling liquid, insulating plates at the end of the structure and attached thereto, terminal rods extending between and supported on said insulating plates, and hooks engaging said rods and extending at their ends into said passages for Contact with said conducting elements.

7. In an electrical condenser a conducting, spacing and cooling channelA unit including conducting sheets adapted to lie against opposed dielectric elements and corrugated sheets between and lying With their convex surfaces against said sheets.

In Witness whereof I claim'the foregoing as my invention, I hereunto append my signature this 18th day of March, 1920.

CHESTER H. TI-IORDARSON.